238873772159 has 4 divisors (see below), whose sum is σ = 260589569640. Its totient is φ = 217157974680.

The previous prime is 238873772149. The next prime is 238873772311. The reversal of 238873772159 is 951277378832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 238873772159 - 2¹⁶ = 238873706623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238873772119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10857898724 + ... + 10857898745.

It is an arithmetic number, because the mean of its divisors is an integer number (65147392410).

Almost surely, 2^238873772159 is an apocalyptic number.

238873772159 is a deficient number, since it is larger than the sum of its proper divisors (21715797481).

238873772159 is a wasteful number, since it uses less digits than its factorization.

238873772159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21715797480.

The product of its digits is 35562240, while the sum is 62.

The spelling of 238873772159 in words is "two hundred thirty-eight billion, eight hundred seventy-three million, seven hundred seventy-two thousand, one hundred fifty-nine".